Explore our leading collection of industrial-grade AC/DC electric motors and system automation hardware engineered for maximum reliability, speed regulation, and energy savings.
Xi’an Lite SIMO Motor Co., Ltd. stands as a bedrock enterprise in the Chinese mechanical and engineering industry. Specializing in the design, processing, manufacturing, mold building, and global deployment of high-efficiency powertrains.
As a key tier-one manufacturing and engineering service supplier, SIMO offers a comprehensive production structure that spans large/medium-sized, high/low voltage AC induction motors, direct current (DC) motors, multi-megawatt synchronous machines, and robust, hazard-certified explosion-proof motors. The scale of SIMO's manufacturing facilities ranks at the top of China’s motor sector, establishing a solid baseline for consecutive years of high-yield output, tech innovation, and rapid structural growth.
Highly-flexible CNC processing, vacuum pressure impregnation (VPI) facilities, and standard dynamometer testing laboratories.
Over 260 design, mechanical, thermal, and electrical simulation engineers leading international industrial upgrades.
Meeting the strict decarbonization and performance requirements of the modern industrial revolution through variable speed technologies.
Modern industrial grids demand severe peak-current reductions. Frequency converter motors paired with VFD controllers eliminate the large inrush currents typical of Direct-On-Line (DOL) starting. This prevents grid voltage sags and protects sensitive surrounding instrumentation in multi-megawatt environments.
Industrial deployment moves deep into high-altitude, offshore, petrochemical, and high-ambient temperature landscapes. Motors require specialized IP55/IP56 ingress protection, Class H insulation, and advanced thermal calculation models to manage hot-spot generation under continuous low-speed operations.
With regulations worldwide tightening standard compliance to IE3, IE4, and ultra-premium IE5 minimum efficiencies, variable frequency technology allows pumps, fans, and compressors to adjust dynamically. This delivers up to 30%-50% energy savings compared to throttle-controlled solutions.
Founded in 1955, SIMO Motor has transformed from a state-owned mechanical workshop into a top-tier electric drive manufacturer.
SIMO Motor established and led by the Chinese government to support regional infrastructure development.
Relocated to a dedicated manufacturing plant in Xi'an City, expanding initial production assets.
Renamed to Xi'an Motor Factory after a series of strategic state acquisitions and asset integrations.
Reformed from a state-owned enterprise into a dynamic, private-equity backed limited liability corporation.
SIMO Motor Group established with 14 subsidiaries. Relocated to a state-of-the-art high-tech industrial park.
Transitioned brand identity to Tech Full Simo Motor, driving sustainable global sales and modernizing production facilities.
60+ Years of Manufacturing and Global Sales Infrastructure
Today, SIMO holds a registered capital of 21.5 million RMB. Our production footprint includes 3 major manufacturing complexes and 1 subsidiary facility. We manage fixed assets exceeding 380 million RMB and utilize more than 1,172 sets of high-precision CNC machinery. Supported by 1,200+ employees and a dedicated R&D engineering pool, we drive efficiency forward.
A comprehensive overview of our standard and customized motor product range, engineered to meet diverse operating requirements.
Our R&D processes cover high-efficiency AC induction motors, high/low voltage squirrel cage or slip-ring configurations, synchronous machines, DC motors, and advanced explosion-proof technologies. Our total power range extends from 0.35 kW to 25,000 kW.
| Power Capacity | 0.35 kW to 25,000 kW |
| Voltage Options | 380V, 415V, 660V, 3kV, 6kV, 10kV, 11kV |
| Cooling Methods | IC411, IC416, IC611, IC81W, IC01 |
| Insulation Class | Class F (Standard), Class H available |
| Ingress Protection | IP23, IP44, IP54, IP55, IP56 |
| Speed Regulation | Wide-range VFD control (5 Hz to 100 Hz+) |
From municipal water networks to offshore platforms, our frequency converter motors are built to deliver reliable performance in demanding environments.
Variable speed control in municipal pumping stations helps manage pressure fluctuations, reduce water hammer risks, and optimize energy use. The YVFE3/YVFE4 motors provide smooth torque delivery to prevent piping wear under varying system demands.
TDMK and YR series slip-ring and synchronous motors deliver high torque under variable load conditions. They operate reliably in dusty, high-vibration mining environments, driving ball mills, crushers, and conveyers.
YBX4 and YBX5 explosion-proof motors operate safely in petrochemical plants and refineries. Designed with flameproof enclosures, they isolate electrical arcs and internal temperatures from volatile gases and dusts in compliance with ATEX and IECEx standards.
Our engineering focus targets efficiency improvements, predictive system diagnostics, and motor-drive optimization.
Modern variable frequency drives create challenges like high-frequency harmonic distortion, rapid dV/dt voltage rises, and shaft currents that can damage standard motor bearings. The SIMO technology roadmap addresses these issues through targeted design enhancements:
Double-shielded mica tape and vacuum pressure impregnation (VPI) with solventless epoxy resin prevent insulation breakdown caused by rapid voltage spikes (high dV/dt).
Insulated non-drive end (NDE) bearings and grounding carbon brushes divert high-frequency shaft currents away from rolling elements, preventing bearing erosion.
Integrated vibration and temperature sensors monitor motor health in real time, supporting predictive maintenance schedules and reducing unexpected downtime.
Our motor designs are optimized using advanced finite element analysis (FEA) to reduce stator copper losses and rotor winding slip, meeting IE4 and IE5 energy efficiency standards.
Standard shaft-driven cooling fans lose efficiency at low speeds. Our frequency converter motors feature independent auxiliary axial fans (IC416 cooling) to maintain airflow and temperature control across the entire speed range.
Leveraging deep industrial clusters and automated manufacturing pipelines to deliver quality products with reliable lead times.
We source cold-rolled silicon steel sheet laminations, 99.99% high-purity copper wires, and forged carbon shafts directly from nearby, long-term supply partners. This integrated local sourcing helps secure our material supply and stabilize production costs.
From initial design simulation and casting to core stamping, CNC lathing, automated winding, VPI insulation treatment, assembly, and testing—every step is completed within our factory. This in-house workflow ensures consistent quality control and reduces external handling times.
Located in the industrial hub of Xi’an, we are linked to key rail networks and deep-water shipping ports. This position supports efficient land transport across Central Asia and Europe via rail, as well as sea shipping to global industrial hubs.
SIMO products are certified under major international quality systems, confirming compliance with global safety, efficiency, and design requirements.
We work to meet strict global engineering guidelines. SIMO has earned certifications including ISO 9001 Quality Management System, European Union CE, United States UL, and Russian GOST.
Our motors are designed in line with standard IEC, NEMA, and GB specifications. This structural alignment allows our equipment to serve as direct replacements or upgrades in existing global machinery systems, water plants, oil refineries, and mine mills.
Answers to common engineering queries regarding variable speed drives, motor selection, and system maintenance.
Standard induction motors are optimized for fixed-frequency operation (typically 50Hz or 60Hz). When run at lower speeds via a VFD, standard shaft-driven fans lose cooling capacity, which can lead to overheating. A frequency converter motor, like the YVFE3 series, is built with an independent auxiliary cooling fan (IC416) to ensure consistent airflow regardless of motor speed. It also features reinforced insulation to withstand high-frequency voltage spikes from VFD controllers.
VFD switching frequencies can induce electrical potential in the motor rotor, leading to shaft currents that discharge through the bearings and cause pitting or fluting. To address this, SIMO uses insulated bearings on the non-drive end (NDE) and installs grounding brushes on the shaft to safely divert current away from the bearing surfaces, extending bearing life.
Yes. We supply specialized explosion-proof motors (such as the YBX3 and YBX4 series) designed to isolate electrical components from volatile gases and dust. For marine use, our motors are built with specialized anti-corrosion paint coatings, seawater-resistant hardware, and tropical-grade insulation to handle high humidity and salt atmospheres.
High-voltage synchronous motors provide high torque and allow for power factor correction across the plant grid. The TDMK series is designed to handle heavy start-up loads and run efficiently under variable mining conditions, helping to reduce energy losses and improve plant power factors.
Every motor undergoes type testing at our testing facility. This includes winding resistance measurements, insulation testing under load, no-load and full-load temperature rise trials, vibration profiling, and noise emission testing to confirm compliance with IEC standards and our internal quality requirements.
Explore our high-efficiency explosion-proof, synchronous, wound rotor, and premium IE4/IE5 induction motors engineered for heavy industrial operations.
Lite Simo
